You can check by
Menu > Information > Part > Part History and Modifications.
From part navigator columns Created, Modified, Created By, Modified By can be useful to certain level but 'Part Modifications' have several options to know modifications using old version(s) of part alongwith criteria and object types.
Hi @shags72 ,
There are some tools that would be helpful to you to track changes:
Also take a look at this post: HOW TO COMPARE TWO PARTS/MODELS
Thank you both! I will take a look at these ideas.